John eancevau



(NoModel.)

J. RANGEVAU.

Curtain Gord Tghtener. No. 235,169. Patented Dec. 7,1880.

Figa.

UNiTnn STATES PATENT Trice.

JOHN RANCEVAU, OF CINCINNATI, OHIO, ASSIGNOR OF ONE-HALF TO JOHN FULLER HASTINGS, OF SAME PLACE.

CURTAIN-CORD TIGHTENER.

SPECIFICATION forming part of Letters Patent No. 235,169, dated December 7, 1880. Application filed April 26, 1880. (No model.)

To all whom it may concern: smooth stud-around which the cord D passes Be it known that I, JOHN RANGEVAU, of the and with or upon which it moves. rEhe outer city of Cincinnati, Hamilton county, and State face of this sliding bar F is provided with a of Ohio, have invented certain'new and useful series of studs or teeth, f, which form a rack, 5 Improvements in Curtain Cord Fixtures, of between the teeth of which the worm or screw 55 which the following is a specification. e passes. The arch or box C is inclined, as lVIy invention relates to that class of curtainshown in Fig. 2, to allow only one portion of fixtures in which a cord is used to raise and the worm to engage the teeth f, the teeth passlower the curtain; and it consists of a device, ing under the worm at the side opposite the ro more particularly hereinafter described, which engaging portion, as shown in said Fig. Z. 6o is at once cheap, convenient, and durable. The operation of my invention, as will be Among the advantages connected with my understood from the foregoing description, is improvement are the following, viz: The cord very simple. The head b of the screw device may be easily tightened or loosened, and when being turned, the worm or screw e, engaging 15 once it (my device) has been set so as to hold with the teeth f, causes the sliding bar F to be 65 the cord taut it cannot afterward be moved lowered or raised, which tightens or loosens out of such position, except by an intentional the cord as occasion requires, and this bar is effort on the part of the operator.

held rmly in the position required. In the drawings forming part of this speci- It will be observed that there are no springs 2o cation, Figure 1 is a plan view of my device.

or other like devices in my invention to break 7o Fig. 2 is a sectional view taken through the or get out of repair, which is the objection line x :zo of Fig. l. Fig. 3 is an inverted plan urged to fixtures as ordinarily constructed. view of the screw device. It is also apparent that the rack of my device, A represents a portion of a window-casing when once set, cannot slip or move from posi- 25 to which my device is attached.

tion until the screw E is turned. In this re- 75 His the holder of the sliding bar, and is prefspect my device has an advantage over many erably constructed asfollows,viz: Bis the baseother curtainfasteners, which are liable, after plate, which is screwed to the casing, and at eia little use, to continually slip, and are also ther side is provided with forwardly-projecting subject to be deranged by an accidental blow 3o lian ges a, which flanges expand near the center from the arm or other portion of the person of 8o and are continuons with the arch or box C. one near the window. This box C is inclined as shown in Fig. 2, the It may be here remarked that the screw e purpose of which construction will be hereinmay be doubled when desired. after explained. In the top of this arch C is The mode of the connection of the inclined acircular opening for the reception of the screw screw to the base-plate may be varied as con- 8 5 deviceE. rIhis screw device consists of a basevenience shall dictate, and the form of the deplate, b, and a knob or head, b', the base-plate vice for rotating the screw may be changed at being of somewhat larger diameter than the pleasure. circular opening in the arch or box C, so that What I claim as new and of my invention, 4o when the various elements of myinvention are and desire to secure by Letters Patent, is 9o in position this base-plate b will be prevented l. The sliding bar F, provided with teeth and from passing through the opening by coming with the cord-holding device G,in combination in contact with the flange d, extending around with a slide-holder and an endless screw, e, insaid opening. On the inner face of this baseclined at an angle to the sliding bar, to allow 45 plate b is a worm or endless screw, c, or coil, only one portion of the screw to come in con- 95 as shown in Fig. 3.'

tact with said bar, substantially as and for the F is a sliding bar, which lits between the purposes specified. an ges c and passes under the arch or box C. 2. rEhe sliding bar F,provided with teeth and To one end of this bar is attached a pulley or with the cord-holding device, in combination 5o other suitable device, G-as, for example, a with a slide-holder having flanges a and an loo endless screw inclined at an angle to the slidl ing bar, to allow only one portion of the screw to come in contact with said bar, substantially as and for the purposes specified.

3. The sliding bar F, provided with teeth and with the cord-holding device, in combination with a, slide-holder having box C, and a screw device consisting of base-plate b, knob or head b', and screw e, inclined at an angle to the 1o sliding bar, substantially as and for the purposes specified.

4. The sliding barF, provided with teeth and with a, cord -holding device, in combination with :i slide holder having a suitable baseplate, Han ges a, box C, and a. screw device, consisting of base-plate b, knob or head b', and screw e, inclined at an angle to the sliding bar, substantially as and for the purposes set forth.

JOHN RANCEVAU.

Witnesses:

E. R. HILL, JN0. W. STREHLI. 

